| Official Name: | Qosira |
| Native Name: | قصيرا |
| Settlement Type: | village |
| Pushpin Map: | Iran |
| Mapsize: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fars |
| Subdivision Type2: | County |
| Subdivision Name2: | Kavar |
| Subdivision Type3: | Bakhsh |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kavar |
| Population As Of: | 2006 |
| Population Total: | 525 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
| Timezone Dst: | IRDT |
| Utc Offset Dst: | +4:30 |
| Coordinates: | 29.1556°N 52.8342°W |
Qosira (Persian: قصيرا, also Romanized as Qoşīrā, Qoşeyrā, Kasīreh, Qasreh, and Qaşr-e Seyyedhā) is a village in Kavar Rural District, in the Central District of Kavar County, Fars Province, Iran. At the 2006 census, its population was 525, in 120 families.